[Ryuji Yukihyo]

It Doesn't even matter what rank you are.

Donor, Staff rank, Master, Regular, Member, User

When you afk and un-assign for more than half the entire map without doing a thing

THAT TIME FARMING

Also as Fish and the other above have said, 

you were "afk" on the server most of the time and its not a way to get points for the shop,
the game will detect that you are afk and wont give you anything.

Donors are people that just paid the server to get premium points without the trouble of selling cheap premium stuff in the shop or the hard work of getting top 3 player of the previous map.

Overall I think this is just a rage post about a DAY ban rather than take it as...

I shouldn't hinder other players even if the server was at its max compacity of players
if it was a bathroom break, an important call, family emergency, a snack break...
Just disconnected and reconnect later.